This ceiling light was manufactured by Holophane. It is made of nickeled metal and glass and has been rewired. Glass height: 11cm Glass with tiny chips. Rewired. Metal re-nickeled. I have official proof of authenticity such as vintage catalogs, designer records, or other literature sources and take full responsibility for any authenticity issues arising from misattribution, Up to 250V (Europe/UK Standard).The wiring of this item may be original and might need replacement, if not specified otherwise.